Saturn Aura Wheel Lug Pattern & Fitment Guide
The Saturn Aura wheel lug pattern is a critical specification for selecting compatible wheels and tires. This guide provides detailed lug count × pitch circle diameter (PCD) measurements, offset ET values, center bore diameters, and rim size information sorted by model year.\n\nGenerally, the Saturn Aura utilizes a 5-lug configuration with a PCD of 114.3 mm (5×114.3). Offset ET can vary depending on the specific model and wheel style, typically ranging from ET35 to ET45. The center bore diameter is standardized to fit the Saturn Aura hub, ensuring proper fitment and balance.\n\nUnderstanding these specifications is essential for safe wheel installation and optimal vehicle performance. Our year-sorted Saturn Aura wheel lug pattern references help you quickly identify compatible wheels to maintain correct handling, clearance, and appearance.\n\nAlways verify the offset and center bore along with the lug pattern when selecting aftermarket or replacement wheels for your Saturn Aura to ensure perfect fitment.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Saturn Aura 3.5 V6 | 2007 | 225/50R18 | 7.5 | 18 | 5×110 | 40 | 65.1 | M12*1,5 |
FAQ
- What is the standard lug pattern for the Saturn Aura?
- The Saturn Aura uses a 5-lug wheel pattern with a pitch circle diameter (PCD) of 114.3 mm.
- Why is offset (ET) important for Saturn Aura wheels?
- Offset affects wheel positioning relative to the hub, impacting handling and clearance; Saturn Aura offsets typically range between ET35 and ET45.
- Can I use wheels from another Saturn model on my Aura?
- Wheels must match the lug pattern, center bore, and offset specifications; some Saturn models share bolt patterns, but always verify all fitment details first.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |






Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |
